Glass-blowing machine.



No. 851,262. PATENTED APR. zgov. G. A. TA'TUM. GLASS BLowING MACHINE.APPLICATION FILED APB.. 12. 1905.

IIIIII A *J E X W6 E My invention relates to machines for blo i UNITED-sTATEs PATENT oEEroE.

CHARLES' A. TATUM, oF NEW YORK, N. Y. GL/issFBLowllilG MAGHINE.

.'lpecication of Letters Patent. Application filed Atal A12, 1905.serial No. 255.105. j

Patented Alirn 2s, 1907.

To all whom it may concern:

Be it known that I, CHARLES A. TATUM, a

citizen of the United States, and a resident of the borough ofManhattan, city, county, and

State of New York, have invented certain' new and useful Improvements inGlass-'Blowlf g Machines, of which the following is a speciiication. ingglass and has for its object to provide an adjustable means whereby ameasured plmunt of air may be delivered to the blow Other objects of myinvention will appear in the detail description following hereinafterand the features of novelty will be pointed out in the appended claims.

Reference is to be had to the accompanyi' ing drawingsmwhich Figure 1 isan elevation with parts in section' of as much of a machine as isnecessary to illustrate my invention and Fig. 2 is a sectional view onthe line 2 2 of Fig. 1.

A represents an air or blowing cylinder mounted upon a base A in whichcylinder moves the piston B connected with a piston rod C the cross headC of which slides in suitable bearings D also mounted on the base A.

E is a connecting rod whichihas its one end connected to the cross-headat E at its other .end the connecting rod E is movably secured to thecrank disc F by means of a crank pin G which is adjustable in a slot Fof the crank disc. The purposes of this construction will be describedmore fully hereinafter. The crank disc F is mounted on -a shaft Hsupported in a suitable bearing I. The crank disc F may be rocked orrotated in any suit-v i able manner as for instance coupling the saiddisc with an operating mechanism in any well known manner.

J represents an adjustable head provided with an air inletvalve J withthe said head i J is rotatably connected a hollow screw K which passesthrough the stationary head A2 of the cylinder which is provided with anop ening A3. The hollow screw is provided with a handle Kiand is held inany desired osition by lock nuts L engaging a brace on the head A2. fThehollow screw K lis con-l nected by means of a ilexible pipe M with theblow head N which communicates with the mould O. lThe said mould O ismounted on a table Pwhich forms part of the machine pro er.

e operation of the apparatus 1s as follows: When it 'has beenascertained by calculation how large or how small a charge of air mould,the stroke of the piston is adjusted by moving the crank pin G in theslot F of the disc F to obtain the result desired. The pis ton is thenmoved to the extreme of its stroke (toward the right inFig. 1) and theadjustable head J is then brou ht up close to the piston B by turningthe ho ow screw K so that there will be just suiiicient clearancebetween the piston when it reaches the end of its stroke and the saidadjustable head. If the piston is now operated the sameamount of air atthe same pressure will be delivered to the blow head at each forwardoperation of said piston.

Itwill be understood that the air is com.

pletely forced out of the cylinder A at each orward operation of thepiston, thus resulting in a gradual increase of pressure which attainsits re uired maximum at the end of the stroke. his result could not beobtained with accuracy if the adjustment of thelength of the pistonstroke alone were depended n as for instance if the stroke of the n isto be delivered to the blow head, this charge varying according to thecapacity ofv the piston were short a cushion of air would re-l main inthe cylinder between the piston at the end of its stroke and the head,which would result in an insufficient pressure being delivered to theblow head, the consequence being that the articles produced would be ofVan inferior grade.` It is to be further understood that as the pistontravels back air will be sucked into the cylinder A through the openingA3 and the air inlet valve J which is so arranged that it will be closedas soon as the piston again travels forward, so that none of thl air canescape except through the p arious mo diiications may be made withoutdeparting from the nature of my invention.

claim and desire to secure by Letters.

IOO

IIO

for adjustingthe stroke of the piston, and a head adjustable toward andfrom the piston and forming a compression chamber therewith, saidheadhaving a delivery conduit connected therewith.

3. In a blowing device the combination of a` cylinder, a piston movabletherein, means for adjusting vthe stroke of the piston, and a headadjustable toward and from the piston" and forming a compressionchambertherewith, said head having suction and delivery channels.' 4

j i 4. In a blowing device the combination of a cylinder, a pistonmovablel therein, a head adjustable toward and from the piston andformin a compression chamber therewith, and a elivery conduit a portion.of which is lcarried by said head and movable therewith.

5. In a blowing device the combination of a cylinder, a piston movabletherein, a head adjustable toward and from the piston and forming acompression chamber therewith, and provided with suction and deliverychannels. i

6. The combination of acylinder, a piston movable therein, means foradjusting the stroke of the piston, a head adjustable toward and fromsaid piston, a blow head, and a delivery conduit extending from theadjustable head ofthe cylinder to the blow` head, a portion of saiddeliveryl conduit being attached to and movable with the adjustablecylinder head. I

`7. In a blowing device, the combination of a cylinder, alpiston movabletherein, means l for adjustingthe relative distance between the pistonand the cylinder head while the istonis out of operation, and' means forad I justing the stroke of the piston so that said piston will comeclose to the cylinderhead y whatever adjustment may have been made ofthe relative distance between pistonand Cylinder head v 8. In a blowingdevice, the combination of a cylinder, a piston movable therein, a headadjustable toward and from the piston and forming a working chambertherewith, and a conduit a portion of which is carried by said' headandlniovable therewith. y

9. In a blowing device, the combination of a cylinder, a piston movabletherein, means 'for adjusting the stroke ofthe piston, and a headadjustable toward and from the piston and forming a working chambertherewith, said head having a conduit connected therewith.

10. In a blowing device, the combination of a c linder, a piston movabletherein, means or adjusting the Stroke of the piston, and a headadjustable toward and from the piston and forming a working chambertherea head adjustable toward and from the pis.

ton, a blow head, anda conduit entending from the adjustable head of thecylinder to the blow head, avportion of said conduit being attached to,and movable with, the adl justable cylinder he-ad.`

In testimony whereof, I have hereunto .set my hand in the presence oftWo subscribing witnesses.

CHARLES ,rATUir..

Witnesses:

Jol-1N LOTKA, Jonnyv A. KEHLENBEGK,"

